1144328617 has 4 divisors (see below), whose sum is σ = 1144486656. Its totient is φ = 1144170580.

The previous prime is 1144328609. The next prime is 1144328651. The reversal of 1144328617 is 7168234411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1144328617 - 2³ = 1144328609 is a prime.

It is a super-3 number, since 3×1144328617³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144328657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67609 + ... + 82822.

It is an arithmetic number, because the mean of its divisors is an integer number (286121664).

Almost surely, 2^1144328617 is an apocalyptic number.

It is an amenable number.

1144328617 is a deficient number, since it is larger than the sum of its proper divisors (158039).

1144328617 is an equidigital number, since it uses as much as digits as its factorization.

1144328617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158038.

The product of its digits is 32256, while the sum is 37.

The square root of 1144328617 is about 33827.9265844066. The cubic root of 1144328617 is about 1045.9644391856.

The spelling of 1144328617 in words is "one billion, one hundred forty-four million, three hundred twenty-eight thousand, six hundred seventeen".